async def _use_stored_companions(self) -> AsyncGenerator[List[CompanionInfo], None]:
async with _open_lockfile(filename=self.state_file_path):
# Create the state file
Path(self.state_file_path).touch(exist_ok=True)
fresh_state = False
with open(self.state_file_path, "r") as f:
try:
companion_info_in = json_to_companion_info(json.load(f))
except json.JSONDecodeError:
fresh_state = True
self.logger.info(
"State file is invalid or empty, creating empty companion info"
)
companion_info_in = []
companion_info_in = sorted(
companion_info_in, key=lambda companion: companion.udid
)
companion_info_out = list(companion_info_in)
yield companion_info_out
companion_info_out = sorted(
companion_info_out, key=lambda companion: companion.udid
)
if fresh_state:
self.logger.info(
f"Created a fresh companion info of {companion_info_out}, writing to file"
)
elif companion_info_in != companion_info_out:
self.logger.info(
f"Companion info changed from {companion_info_in} to {companion_info_out}, writing to file"
)
else:
return
with open(self.state_file_path, "w") as f:
json.dump(json_data_companions(companion_info_out), f)
async def test_get_companions(self) -> None:
with tempfile.NamedTemporaryFile() as f:
companion_manager = DirectCompanionManager(
logger=mock.MagicMock(), state_file_path=f.name
)
companion = CompanionInfo(
udid="asdasda", host="foohost", port=123, is_local=False
)
with open(f.name, "w") as f:
json.dump(json_data_companions([companion]), f)
companions = companion_manager._load()
read_companion: CompanionInfo = companions[0]
self.assertEqual(companion, read_companion)
async def test_remove_companion_with_udid(self) -> None:
with tempfile.NamedTemporaryFile() as f:
companion_manager = DirectCompanionManager(logger=mock.MagicMock(),
state_file_path=f.name)
companion = CompanionInfo(udid="asdasda",
host="foohost",
port=123,
is_local=False)
with open(f.name, "w") as f:
json.dump(json_data_companions([companion]), f)
companion_manager.remove_companion(
Address(host=companion.host, port=companion.port))
companions = companion_manager._load()
self.assertEqual(companions, [])
async def test_clear(self) -> None:
with tempfile.NamedTemporaryFile() as f:
with open(f.name, "w") as temp:
json.dump(json_data_companions([]), temp)
companion_manager = DirectCompanionManager(logger=mock.MagicMock(),
state_file_path=f.name)
companion = CompanionInfo(udid="asdasda",
host="foohost",
port=123,
is_local=False)
companion_manager.add_companion(companion)
companion_manager.clear()
companions = companion_manager.get_companions()
self.assertEqual(companions, [])
async def _use_stored_companions(self) -> AsyncGenerator[List[CompanionInfo], None]:
async with exclusive_rw_open(self.state_file_path) as f:
try:
companion_info_in = json_to_companion_info(json.load(f))
except json.JSONDecodeError:
companion_info_in = []
companion_info_out = list(companion_info_in)
yield companion_info_out
if companion_info_in == companion_info_out:
return
f.seek(0)
companion_info_out = sorted(
companion_info_out, key=lambda companion: companion.udid
)
json.dump(json_data_companions(companion_info_out), f)
f.truncate()
def test_json_to_companion_info(self) -> None:
self.assertEqual(
[COMPANION_INFO_FIXTURE],
json_to_companion_info(json_data_companions([COMPANION_INFO_FIXTURE])),
)
def _save(self) -> None:
with open(self.state_file_path, "w") as f:
lockf(f, LOCK_EX)
json.dump(json_data_companions(self.companions), f)
lockf(f, LOCK_UN)
def _save(self) -> None:
# pyre-fixme[16]: `AsyncGenerator` has no attribute `__enter__`.
with exclusive_open(self.state_file_path, "w") as f:
json.dump(json_data_companions(self.companions), f)
def _save(self) -> None:
with exclusive_open(self.state_file_path, "w") as f:
json.dump(json_data_companions(self.companions), f)
